I want to understand how the Arduino Micro is powered, so that I can better understand how to create my own circuit based off the Arduino Micro schematic.
I'm planning on building a project that will be powered strictly off USB. So does this mean I won't need the regulator and voltage selector modules of the Arduino Micro schematic (picture for reference below)?
I assume that the
+3.3V line is generated from the voltage regulator module (if you have some power source connected to
VIN). So if I'm powering off of USB (and don't have the voltage regulator) how will the
+5V line be powered?
Also, do I still need all the other components (connected to the left side inputs/outputs) if I am powering off of USB?